/* ==========================================================================
   LUMINALUX - PREMIUM STYLE SYSTEM
   ========================================================================== */

/* Design Tokens & Variables */
:root {
    /* Color Palette (Forest Sage & Satin Gold) */
    --color-bg-light: #f3f5f3;        /* Soft mineral sage cream */
    --color-bg-white: #ffffff;
    --color-bg-dark: #0e1713;         /* Deep forest cypress green */
    --color-bg-dark-card: #18221d;    /* Subtle forest green for containers */
    
    --color-accent-gold: #cfae88;     /* Satin gold */
    --color-accent-gold-dark: #b8966e;/* Muted bronze gold */
    --color-accent-gold-light: #f5ede2;/* Pale champagne cream */
    
    --color-text-dark: #141c19;       /* Deep charcoal forest text */
    --color-text-muted: #5a6962;      /* Slate sage gray */
    --color-text-light: #ffffff;
    --color-text-gold: #ebd2b4;
    
    --color-border-light: rgba(20, 28, 25, 0.08);
    --color-border-dark: rgba(255, 255, 255, 0.08);
    
    --color-error: #c96b6b;
    --color-success: #5ca182;
    
    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Shadows & Transitions */
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.02);
    --shadow-medium: 0 20px 40px rgba(28, 26, 23, 0.05);
    --shadow-dark: 0 30px 60px rgba(0, 0, 0, 0.4);
    --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.2s ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    /* Container Widths */
    --container-width: 1200px;
    --header-height: 80px;
}

/* Base Resets */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--color-bg-light);
    color: var(--color-text-dark);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

button {
    font-family: inherit;
    background: none;
    border: none;
    cursor: pointer;
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-light);
}
::-webkit-scrollbar-thumb {
    background: #ced5d1;
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-gold-dark);
}

/* Typography Utils */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
}

/* Section Common Styles */
.section-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background-color: var(--color-accent-gold-dark);
    margin: 15px auto 0 auto;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    font-weight: 300;
    line-height: 1.7;
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    border-radius: 0;
    text-transform: uppercase;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    border: 1px solid var(--color-bg-dark);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent-gold-dark);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1;
}

.btn-primary:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.btn-primary:hover {
    border-color: var(--color-accent-gold-dark);
}

.btn-primary span, .btn-primary svg {
    position: relative;
    z-index: 2;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-dark);
    border: 1px solid var(--color-border-light);
}

.btn-secondary:hover {
    border-color: var(--color-text-dark);
    background-color: rgba(0, 0, 0, 0.02);
}

.btn-gold {
    background-color: var(--color-accent-gold);
    color: var(--color-bg-dark);
    border: 1px solid var(--color-accent-gold);
}

.btn-gold:hover {
    background-color: var(--color-accent-gold-dark);
    border-color: var(--color-accent-gold-dark);
    color: var(--color-text-light);
}

.btn-dark {
    background-color: transparent;
    color: var(--color-text-light);
    border: 1px solid var(--color-border-dark);
}

.btn-dark:hover {
    background-color: var(--color-text-light);
    color: var(--color-bg-dark);
    border-color: var(--color-text-light);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-arrow {
    margin-left: 8px;
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* Main Header Navigation */
.main-header {
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    transition: var(--transition-smooth);
    border-bottom: 1px solid transparent;
}

.main-header.scrolled {
    background-color: rgba(250, 248, 245, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border-light);
    height: 70px;
}

.header-container {
    max-width: var(--container-width);
    height: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--color-text-dark);
    opacity: 0.85;
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-accent-gold-dark);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-link:hover {
    opacity: 1;
}

.logo-container {
    flex-grow: 1;
    text-align: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    letter-spacing: 0.15em;
    font-weight: 400;
    color: var(--color-text-dark);
}

.nav-icons {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-icon {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    opacity: 0.85;
}

.nav-icon:hover {
    opacity: 1;
    color: var(--color-accent-gold-dark);
}

.nav-icon-btn {
    color: var(--color-text-dark);
    opacity: 0.85;
    transition: var(--transition-fast);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-icon-btn:hover {
    opacity: 1;
    color: var(--color-accent-gold-dark);
}

.cart-btn {
    position: relative;
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--color-accent-gold-dark);
    color: var(--color-text-light);
    font-size: 0.65rem;
    font-weight: 700;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    z-index: 110;
}

.mobile-menu-toggle .bar {
    width: 22px;
    height: 1.5px;
    background-color: var(--color-text-dark);
    transition: var(--transition-fast);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-light);
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-100%);
    transition: var(--transition-smooth);
}

.mobile-nav-overlay.open {
    transform: translateY(0);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.mobile-link {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-text-dark);
}

/* Hero Section */
.hero-section {
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 80px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-tagline {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-accent-gold-dark);
    text-transform: uppercase;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--color-text-dark);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    font-weight: 300;
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-smooth);
    background-color: var(--color-bg-white);
}

.hero-img {
    width: 100%;
    object-fit: cover;
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-image-wrapper:hover .hero-img {
    transform: scale(1.05);
}

/* Les Bienfaits Section */
.benefits-section {
    padding: 100px 0;
    background-color: var(--color-bg-white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.benefit-card {
    text-align: center;
    padding: 40px 20px;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-8px);
}

.benefit-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px auto;
    color: var(--color-accent-gold-dark);
    transition: var(--transition-smooth);
}

.benefit-card:hover .benefit-icon-wrapper {
    background-color: var(--color-bg-dark);
    color: var(--color-accent-gold);
}

.benefit-icon {
    width: 24px;
    height: 24px;
}

.benefit-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--color-text-dark);
}

.benefit-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    font-weight: 300;
    line-height: 1.6;
}

/* Marine Biotech Section */
.biotech-section {
    padding: 120px 0;
    background-color: var(--color-bg-light);
}

.biotech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.collage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.collage-item {
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    background-color: var(--color-bg-white);
    aspect-ratio: 1;
}

.collage-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.2s ease;
}

.collage-item:hover img {
    transform: scale(1.08);
}

.item-1 {
    transform: translateY(-15px);
}

.item-2 {
    transform: translateY(15px);
}

.item-3 {
    transform: translateY(-15px);
}

.item-4 {
    transform: translateY(15px);
}

.biotech-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.content-tag {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-accent-gold-dark);
    text-transform: uppercase;
    margin-bottom: 15px;
}

.gold-tag {
    color: var(--color-accent-gold);
}

.biotech-title {
    font-size: 3rem;
    margin-bottom: 25px;
}

.biotech-description {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    font-weight: 300;
    margin-bottom: 40px;
}

.biotech-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.biotech-list li {
    display: flex;
    gap: 25px;
}

.list-num {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-accent-gold-dark);
    line-height: 1;
    opacity: 0.8;
}

.list-text h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text-dark);
}

.list-text p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    font-weight: 300;
}

/* La Crème Concentrée (Dark Checkout) */
.checkout-section {
    padding: 120px 0;
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    position: relative;
    overflow: hidden;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
}

.checkout-title {
    font-size: 3rem;
    margin-bottom: 25px;
}

.checkout-description {
    font-size: 1.05rem;
    color: #a3a3a3;
    font-weight: 300;
    margin-bottom: 35px;
}

.checkout-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.checkout-features li {
    display: flex;
    align-items: center;
    gap: 15px;
}

.check-icon {
    color: var(--color-accent-gold);
    flex-shrink: 0;
}

.checkout-features span {
    font-size: 0.95rem;
    font-weight: 300;
    color: #e5e5e5;
}

/* Order Box Form */
.order-box {
    background-color: var(--color-bg-dark-card);
    border: 1px solid var(--color-border-dark);
    padding: 40px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-dark);
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border-dark);
    padding-bottom: 25px;
    margin-bottom: 30px;
}

.order-header h3 {
    font-size: 1.6rem;
    letter-spacing: 0.05em;
}

.order-price {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.old-price {
    font-size: 1rem;
    text-decoration: line-through;
    color: #737373;
}

.new-price {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-accent-gold);
    line-height: 1.1;
}

.promo-badge {
    font-size: 0.7rem;
    background-color: rgba(223, 195, 163, 0.15);
    color: var(--color-accent-gold);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    margin-top: 5px;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #a3a3a3;
}

.form-group input {
    background-color: transparent;
    border: 1px solid #404040;
    padding: 14px 18px;
    color: var(--color-text-light);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
    outline: none;
}

.form-group input:focus {
    border-color: var(--color-accent-gold);
    box-shadow: 0 0 10px rgba(223, 195, 163, 0.1);
}

.form-error-msg {
    color: var(--color-error);
    font-size: 0.8rem;
    display: none;
}

.checkout-image-wrapper {
    position: relative;
}

.checkout-img-container {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-dark);
}

.checkout-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.glass-tag {
    position: absolute;
    bottom: 30px;
    left: 30px;
    right: 30px;
    background-color: rgba(10, 10, 10, 0.5);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 20px 25px;
    display: flex;
    flex-direction: column;
}

.glass-tag-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-accent-gold);
}

.glass-tag-desc {
    font-size: 0.8rem;
    color: #d4d4d4;
    font-weight: 300;
}

/* Scientific Expertise Section (Overlay stats) */
.expertise-section {
    position: relative;
    padding: 180px 0;
    overflow: hidden;
}

.expertise-bg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.expertise-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.expertise-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(250, 248, 245, 0.7);
    z-index: 2;
}

.expertise-content {
    position: relative;
    z-index: 3;
    display: flex;
    justify-content: center;
}

.stats-box {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    border: 1px solid var(--color-border-dark);
    padding: 60px 80px;
    text-align: center;
    max-width: 850px;
    width: 100%;
    box-shadow: var(--shadow-dark);
}

.stats-box h2 {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.stats-subtitle {
    font-size: 1rem;
    color: #a3a3a3;
    font-weight: 300;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.stats-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    color: var(--color-accent-gold);
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #e5e5e5;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background-color: var(--color-border-dark);
}

/* La Gamme Exclusive Section */
.gallery-section {
    padding: 120px 0;
    background-color: var(--color-bg-white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.product-card {
    background-color: var(--color-bg-light);
    border: 1px solid transparent;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.product-image-container {
    position: relative;
    overflow: hidden;
    background-color: var(--color-bg-white);
    aspect-ratio: 1.1;
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .product-img {
    transform: scale(1.06);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 10, 10, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast) ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.badge-featured {
    position: absolute;
    top: 15px;
    left: 15px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    background-color: var(--color-accent-gold-dark);
    color: var(--color-text-light);
    padding: 4px 10px;
    text-transform: uppercase;
}

.product-info {
    padding: 25px;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-card-title {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: 5px;
}

.product-card-category {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 300;
    margin-bottom: 15px;
}

.product-card-price {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-text-dark);
}

.gallery-action {
    text-align: center;
}

/* Rejoignez le Cercle (Newsletter) */
.newsletter-section {
    padding: 100px 0;
    background-color: var(--color-bg-light);
}

.newsletter-box {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: 80px 40px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    box-shadow: var(--shadow-medium);
}

.newsletter-box h2 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.newsletter-box p {
    font-size: 1rem;
    color: #a3a3a3;
    font-weight: 300;
    max-width: 500px;
    margin: 0 auto 40px auto;
}

.newsletter-form {
    display: flex;
    max-width: 550px;
    margin: 0 auto;
    border-bottom: 1px solid var(--color-border-dark);
}

.newsletter-form input {
    flex-grow: 1;
    background: transparent;
    border: none;
    padding: 15px 20px;
    color: var(--color-text-light);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
}

.newsletter-form input::placeholder {
    color: #737373;
}

.newsletter-form button {
    padding: 15px 35px;
    font-weight: 600;
    letter-spacing: 0.1em;
}

/* Footer Styling */
.main-footer {
    background-color: #050505;
    color: var(--color-text-light);
    padding: 80px 0 40px 0;
    border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    letter-spacing: 0.15em;
    color: var(--color-text-light);
    margin-bottom: 20px;
    display: inline-block;
}

.footer-tagline {
    font-size: 0.9rem;
    color: #8f8f8f;
    font-weight: 300;
    max-width: 300px;
}

.footer-nav {
    display: flex;
    justify-content: space-around;
}

.footer-nav-col h4 {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 25px;
    color: var(--color-accent-gold);
}

.footer-nav-col a {
    display: block;
    font-size: 0.9rem;
    color: #a3a3a3;
    margin-bottom: 12px;
    font-weight: 300;
}

.footer-nav-col a:hover {
    color: var(--color-text-light);
    transform: translateX(2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border-dark);
    padding-top: 40px;
}

.footer-copyright {
    font-size: 0.85rem;
    color: #737373;
    font-weight: 300;
}

.footer-socials {
    display: flex;
    gap: 20px;
}

.footer-socials a {
    color: #a3a3a3;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.footer-socials a:hover {
    color: var(--color-accent-gold);
    transform: translateY(-2px);
}

/* Shopping Cart Drawer */
.cart-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 450px;
    max-width: 100%;
    height: 100%;
    background-color: var(--color-bg-white);
    box-shadow: var(--shadow-dark);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.cart-drawer.open {
    transform: translateX(0);
}

.cart-drawer-header {
    height: 80px;
    padding: 0 30px;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cart-drawer-header h3 {
    font-size: 1.5rem;
    letter-spacing: 0.05em;
}

.btn-close-cart {
    color: var(--color-text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.btn-close-cart:hover {
    transform: rotate(90deg);
}

.cart-drawer-items {
    flex-grow: 1;
    padding: 30px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.cart-empty-msg {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 40px;
    font-weight: 300;
}

/* Cart Item Style */
.cart-item {
    display: flex;
    gap: 20px;
    align-items: center;
    border-bottom: 1px solid rgba(0,0,0,0.04);
    padding-bottom: 20px;
}

.cart-item-img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background-color: var(--color-bg-light);
}

.cart-item-details {
    flex-grow: 1;
}

.cart-item-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: 4px;
}

.cart-item-price {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-text-dark);
    margin-bottom: 8px;
}

.cart-item-qty-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.qty-selector {
    display: flex;
    align-items: center;
    border: 1px solid var(--color-border-light);
}

.qty-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: background-color var(--transition-fast);
}

.qty-btn:hover {
    background-color: var(--color-bg-light);
}

.qty-val {
    width: 32px;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 500;
}

.btn-remove-item {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-decoration: underline;
    opacity: 0.8;
}

.btn-remove-item:hover {
    opacity: 1;
    color: var(--color-error);
}

/* Cart Footer */
.cart-drawer-footer {
    padding: 30px;
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-bg-light);
}

.cart-summary-line {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.cart-divider {
    border: none;
    border-top: 1px solid var(--color-border-light);
    margin: 15px 0;
}

.cart-total-line {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: 25px;
}

.cart-total-line span:last-child {
    font-family: var(--font-heading);
    font-size: 1.4rem;
}

.cart-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.cart-drawer-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

/* Modals General Style */
.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    z-index: 1010;
    opacity: 0;
    pointer-events: none;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    width: 90%;
    max-width: 600px;
}

.modal.open {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
}

.modal-content {
    background-color: var(--color-bg-white);
    padding: 50px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-dark);
    position: relative;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-close-btn {
    position: absolute;
    top: 25px;
    right: 25px;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--color-text-dark);
    transform: rotate(90deg);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 10, 10, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1009;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s ease;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

/* Specific Modals Content */
.text-center {
    text-align: center;
}

.modal-icon-success {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: rgba(92, 184, 135, 0.1);
    color: var(--color-success);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px auto;
}

.modal-content h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.modal-content p {
    font-size: 1rem;
    color: var(--color-text-muted);
    font-weight: 300;
    margin-bottom: 20px;
    line-height: 1.7;
}

.modal-content button {
    margin-top: 20px;
}

.modal-content h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--color-text-dark);
}

.modal-content h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    margin-top: 25px;
    margin-bottom: 10px;
}

/* Toast System */
.toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1020;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.toast {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: 15px 25px;
    border-left: 3px solid var(--color-accent-gold);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    box-shadow: var(--shadow-dark);
    transform: translateY(100px);
    opacity: 0;
    animation: slideUpToast 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast-msg {
    font-size: 0.85rem;
    font-weight: 500;
}

.toast-close {
    font-size: 0.8rem;
    color: #a3a3a3;
    opacity: 0.7;
}

.toast-close:hover {
    opacity: 1;
}

@keyframes slideUpToast {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Scroll Reveal Elements Base */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Delays for scroll reveal */
.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

.delay-3 {
    transition-delay: 0.6s;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */

/* Desktop & Notebooks Small sizes */
@media (max-width: 1200px) {
    .section-container {
        padding: 0 30px;
    }
    .hero-title {
        font-size: 3.5rem;
    }
}

/* Tablets (landscape) and below */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-image-container {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .biotech-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .biotech-collage {
        max-width: 550px;
        margin: 0 auto;
    }
    
    .checkout-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .checkout-image-wrapper {
        max-width: 650px;
        margin: 0 auto;
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .footer-nav {
        justify-content: space-around;
    }
}

/* Tablets Portrait (under 768px) */
@media (max-width: 768px) {
    /* Header & Mobile navigation */
    .nav-links, .right-nav .nav-icon, .right-nav #btn-profile {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active .bar:nth-child(2) {
        transform: rotate(-45deg) translate(4px, -4px);
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    /* Layout elements */
    .hero-title {
        font-size: 2.8rem;
    }
    
    .section-title {
        font-size: 2.3rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        max-width: 400px;
        margin: 0 auto 50px auto;
    }
    
    .stats-box {
        padding: 40px 30px;
    }
    
    .stats-box h2 {
        font-size: 2rem;
    }
    
    .stats-grid {
        flex-direction: column;
        gap: 30px;
    }
    
    .stat-divider {
        width: 60px;
        height: 1px;
        background-color: var(--color-border-dark);
        margin: 0 auto;
    }
    
    .newsletter-box {
        padding: 50px 20px;
    }
    
    .newsletter-box h2 {
        font-size: 2rem;
    }
    
    .newsletter-form {
        flex-direction: column;
        border: none;
        gap: 15px;
    }
    
    .newsletter-form input {
        border: 1px solid var(--color-border-dark);
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .order-box {
        padding: 30px 20px;
    }
}

/* Small SmartPhones */
@media (max-width: 480px) {
    .section-container {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .order-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .order-price {
        align-items: flex-start;
    }
}

/* Language Switcher Styling */
.lang-toggle-btn {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--color-text-dark);
    opacity: 0.8;
    padding: 6px 12px;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.lang-toggle-btn:hover {
    opacity: 1;
    color: var(--color-accent-gold-dark);
    border-color: var(--color-accent-gold-dark);
}

.main-header.scrolled .lang-toggle-btn {
    color: var(--color-text-dark);
    border-color: var(--color-border-light);
}

.main-header.scrolled .lang-toggle-btn:hover {
    color: var(--color-accent-gold-dark);
    border-color: var(--color-accent-gold-dark);
}

/* RTL Styles & Overrides for Arabic Version */
body.rtl {
    --font-heading: 'El Messiri', 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Cairo', 'Inter', system-ui, -apple-system, sans-serif;
    text-align: right;
}

body.rtl .btn-arrow {
    transform: scaleX(-1);
    margin-left: 0;
    margin-right: 8px;
}

body.rtl .btn:hover .btn-arrow {
    transform: scaleX(-1) translateX(4px);
}

body.rtl .badge-featured {
    left: auto;
    right: 15px;
}

body.rtl .toast-container {
    right: auto;
    left: 30px;
}

body.rtl .toast {
    border-left: none;
    border-right: 3px solid var(--color-accent-gold);
}

body.rtl .modal-close-btn {
    right: auto;
    left: 25px;
}

body.rtl .footer-nav-col a:hover {
    transform: translateX(-2px);
}

body.rtl .main-header .nav-links {
    flex-direction: row-reverse;
}

body.rtl .nav-icons {
    flex-direction: row-reverse;
}

body.rtl .qty-selector {
    flex-direction: row-reverse;
}

body.rtl .cart-drawer-header {
    flex-direction: row-reverse;
}

body.rtl .btn-close-cart {
    order: -1;
}

/* Adjust header and mobile nav text styling for Cairo */
body.rtl .logo {
    letter-spacing: 0.05em;
}

body.rtl .btn {
    letter-spacing: 0.05em;
}

body.rtl .hero-tagline,
body.rtl .content-tag,
body.rtl .stat-label,
body.rtl .footer-nav-col h4 {
    letter-spacing: 0.05em;
}

/* Presentation Section Styles */
.presentation-section {
    padding: 100px 0;
    background-color: var(--color-bg-light, #fafafa);
}

.presentation-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 50px;
}

.presentation-card {
    background-color: var(--color-bg-white, #ffffff);
    padding: 40px;
    border-radius: var(--radius-lg, 12px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    transition: var(--transition-normal, all 0.3s ease);
    border: 1px solid var(--color-border-light, #f0f0f0);
}

.presentation-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(184, 150, 87, 0.08);
    border-color: var(--color-accent-gold-light, #b89657);
}

.presentation-card h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-text-dark, #1c1c1c);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.presentation-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 1px;
    background-color: var(--color-accent-gold, #b89657);
    transition: width 0.3s ease;
}

body.rtl .presentation-card h3::after {
    left: auto;
    right: 0;
}

.presentation-card:hover h3::after {
    width: 60px;
}

.presentation-card p {
    color: var(--color-text-muted, #666666);
    line-height: 1.7;
    font-size: 1rem;
}

@media (max-width: 992px) {
    .presentation-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .presentation-section {
        padding: 70px 0;
    }
}